I have a Diamondback Edgewood 26" hybrid bike. I believe it is a 2008 model. Mostly it's a great bike and it certainly serves my needs right now.
However, the stem has become loose so the handlebars pivot on about a 75° axis. Thus, the only way to ride it is to tilt it forward so it is flat - definitely not the most comfortable position.
The top and bottom screws are adjustable, but they don't effect this aspect of control. The side screws are what I need to adjust - 4mm hex screws on both sides - and completely stripped. If they made a 4.25 - 4.5mm hex bit, I might be able to get it out, but I don't think so. It's pretty rounded.
So I'm probably gonna have to drill them out, and my question is twofold:
- Can I replace just the screws - if so, with what? How to know correct measurements?
- Or failing that, is the stem replaceable and where can I find the right one? I looked around online, but I couldn't find anything that I was confident would be an answer to my question.